EP 1831147 A1 20070912 - METHOD FOR PRODUCING PHTHALIC ANHYDRIDE
Title (en)
METHOD FOR PRODUCING PHTHALIC ANHYDRIDE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PHTHALSÄUREANHYDRID
Title (fr)
PROCEDE DE PRODUCTION D'ANHYDRIDE PHTALIQUE
Publication
Application
Priority
- EP 2005013774 W 20051221
- DE 102004061770 A 20041222
Abstract (en)
[origin: US2010022785A1] Processes comprising: (a) providing a reactant comprising a component selected from the group consisting of o-xylene, naphthalene and mixtures thereof, and a gas comprising oxygen; (b) reacting the reactant and the gas in a reaction system, in the presence of a catalyst, to form phthalic anhydride; wherein the reaction system comprises: (i) at least two reaction zones, each reaction zone cooled with a coolant; and (ii) an intermediate cooling zone disposed between a first of the at least two reaction zones and a second of the at least two reaction zones; and wherein the coolant entering the first of the at least two reaction zones has a temperature which is more than 20° C. higher than a temperature of the coolant entering the second of the at leas two reaction zones.
IPC 8 full level
C07C 51/265 (2006.01); C07D 307/89 (2006.01)
CPC (source: EP KR US)
B01J 8/0488 (2013.01 - EP US); B01J 8/0496 (2013.01 - EP US); B01J 19/249 (2013.01 - EP US); C07C 51/16 (2013.01 - KR); C07C 51/265 (2013.01 - EP KR US); C07C 51/313 (2013.01 - EP US); C07C 51/41 (2013.01 - KR); B01J 2208/0015 (2013.01 - EP US); B01J 2219/00155 (2013.01 - EP US); B01J 2219/2453 (2013.01 - EP US); B01J 2219/2459 (2013.01 - EP US); B01J 2219/2462 (2013.01 - EP US); B01J 2219/2481 (2013.01 - EP US); B01J 2219/2485 (2013.01 - EP US)
Citation (search report)
See references of WO 2006069694A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2010022785 A1 20100128; US 7772410 B2 20100810; AT E450495 T1 20091215; CN 101087748 A 20071212; CN 101087748 B 20110720; DE 102004061770 A1 20060706; DE 502005008654 D1 20100114; EP 1831147 A1 20070912; EP 1831147 B1 20091202; ES 2336469 T3 20100413; JP 2008524297 A 20080710; KR 20070089184 A 20070830; MY 140990 A 20100212; TW 200630334 A 20060901; WO 2006069694 A1 20060706
DOCDB simple family (application)
US 72244905 A 20051221; AT 05819946 T 20051221; CN 200580044520 A 20051221; DE 102004061770 A 20041222; DE 502005008654 T 20051221; EP 05819946 A 20051221; EP 2005013774 W 20051221; ES 05819946 T 20051221; JP 2007547333 A 20051221; KR 20077014043 A 20070621; MY PI20056087 A 20051221; TW 94145906 A 20051222